public class Test {
    public static void main1(String[] args) {
        HashBucket hashBucket = new HashBucket();
        hashBucket.push(1,15);
        hashBucket.push(2,16);
        hashBucket.push(3,17);
        hashBucket.push(4,18);
        hashBucket.push(4,20);
        System.out.println(hashBucket.get(4));
    }
}